Otvety Na Voprosy 20 Paragrafa Po Khimii 9 Klass Novoshinskii May 2026

Paragraph 20 of the 9th-grade Novoshinsky chemistry curriculum focuses on the properties of halogens, specifically Practical Work №2, which involves identifying halogen ions using silver nitrate and observing properties of hydrochloric acid [1]. Key laboratory tasks include identifying chloride, bromide, and iodide ions through distinct precipitation reactions, alongside demonstrating the acidic action of hydrochloric acid and halogen displacement reactions [1]. For more information, visit the textbook curriculum at Infourok .